etcd: Start node got etcd error: stm.Commit() failed - etcdserver: request timed out

[yyforyongyu]

Found from this build,

--- FAIL: TestLightningNetworkDaemon/tranche03/134-of-271/bitcoind/send_multi_path_payment (17.82s)
        harness_node.go:403: Starting node (name=Alice) with PID=15804
        harness_node.go:403: Starting node (name=Bob) with PID=15824
        harness.go:482: 
            	Error Trace:	/home/runner/work/lnd/lnd/lntest/harness.go:482
            	            				/home/runner/work/lnd/lnd/lntest/harness.go:501
            	            				/home/runner/work/lnd/lnd/itest/lnd_mpp_test.go:269
            	            				/home/runner/work/lnd/lnd/itest/lnd_mpp_test.go:23
            	            				/home/runner/work/lnd/lnd/lntest/harness.go:297
            	            				/home/runner/work/lnd/lnd/itest/lnd_test.go:130
            	Error:      	Received unexpected error:
            	            	waiting for server active: receive server state err: rpc error: code = Unavailable desc = error reading from server: EOF
            	Test:       	TestLightningNetworkDaemon/tranche03/134-of-271/bitcoind/send_multi_path_payment
            	Messages:   	failed to start node Bob
        harness.go:375: finished test: send_multi_path_payment, start height=944, end height=945, mined blocks=1
        harness.go:334: test failed, skipped cleanup
    lnd_test.go:138: Failure time: 2025-02-27 10:02:25.753
FAIL

Digging the log, it turns out the request made to etcd has timed out, causing the node to fail to be started,

2025-02-27 10:02:13.800 [DBG] RPCS interceptor.go:791: [/lnrpc.State/SubscribeState] requested
{"level":"warn","ts":"2025-02-27T10:02:20.952Z","logger":"etcd-client","caller":"[email protected]/retry_interceptor.go:62","msg":"retrying of unary invoker failed","target":"etcd-endpoints://0xc001045340/127.0.0.1:14928","attempt":0,"error":"rpc error: code = Unavailable desc = etcdserver: request timed out"}
2025-02-27 10:02:20.952 [ERR] LTND config_builder.go:815: unable to create chain control: unable to create wallet: etcd error: stm.Commit() failed - etcdserver: request timed out
2025-02-27 10:02:20.952 [ERR] LTND lnd.go:169: Shutting down due to error in main method err="unable to create chain control: unable to create wallet: etcd error: stm.Commit() failed - etcdserver: request timed out"